Trouble with HTML emails again
Not sure what happened with my Mailman 3 setup. I haven't changed any settings in Mailman itself, but HTML emails suddenly don't show up properly anymore.
One of two things is happening... either the message is shown as a text/plain email with an HTML attachment included, which if you open up, is the way the HTML email should look. Or I will get an email with a bunch of strangely broken HTML, for example this snippet of HTML:
new releases are also viewable at <a href="http://www.mysite.com/New/NewIndex.html" > http://www.mysite.com/new/newindx.html</a><br> <br>
will be rendered as this:
new releases are also viewable at <http://www.mysite.com/New/NewIndex.html> http://www.mysite.com/new/newindx.html
whereas every day up until now, it would render properly as you would expect it to.
I am not working with multipart emails, just HTML only. On top of this, inline images which link to locations hosted on other sites are being included as attachments to the email which is incorrect and never has happened before.
To be sure I didn't mess up any list specific settings, I made a new list, left all the settings as fault, and tried in that one - same behavior. I can't seem to figure out what happened as I haven't been messing with Mailman's configuration. Where should I look to take care of this?
I apologize if this is the wrong list for the question. If it is let me know.
Shea Alterio writes:
Is this snippet in the mail *as delivered*?
If not, I suspect you have (or the defaults have) the "convert HTML to text" option set.
HTML mail is very fragile because many generators do not conform to the standard and it's very difficult to preserve the intended meaning even though if left alone it almost always displays nicely. In a context where intermediaries mutate it *in any way* before passing it on to the end user, it *will* break, and should be avoided. If HTML is very desirable for whatever reason, try turning off all mailing list features that touch the body (specifically header and footer).
It was as delivered - but I actually found out it was a problem with Amazon SES. When using any other service to send emails the problem did not occur. I think it's safe to say it wasn't a mailman problem.
Sent from my BlackBerry 10 smartphone on the Verizon Wireless 4G LTE network. Original Message From: Stephen J. Turnbull Sent: Tuesday, February 16, 2016 11:36 PM To: Shea Alterio Cc: mailman-users@python.org Subject: [Mailman-Users] Trouble with HTML emails again (in Mailman 3)
Shea Alterio writes:
Is this snippet in the mail *as delivered*?
If not, I suspect you have (or the defaults have) the "convert HTML to text" option set.
HTML mail is very fragile because many generators do not conform to the standard and it's very difficult to preserve the intended meaning even though if left alone it almost always displays nicely. In a context where intermediaries mutate it *in any way* before passing it on to the end user, it *will* break, and should be avoided. If HTML is very desirable for whatever reason, try turning off all mailing list features that touch the body (specifically header and footer).
Shea Alterio writes:
Is this snippet in the mail *as delivered*?
If not, I suspect you have (or the defaults have) the "convert HTML to text" option set.
HTML mail is very fragile because many generators do not conform to the standard and it's very difficult to preserve the intended meaning even though if left alone it almost always displays nicely. In a context where intermediaries mutate it *in any way* before passing it on to the end user, it *will* break, and should be avoided. If HTML is very desirable for whatever reason, try turning off all mailing list features that touch the body (specifically header and footer).
It was as delivered - but I actually found out it was a problem with Amazon SES. When using any other service to send emails the problem did not occur. I think it's safe to say it wasn't a mailman problem.
Sent from my BlackBerry 10 smartphone on the Verizon Wireless 4G LTE network. Original Message From: Stephen J. Turnbull Sent: Tuesday, February 16, 2016 11:36 PM To: Shea Alterio Cc: mailman-users@python.org Subject: [Mailman-Users] Trouble with HTML emails again (in Mailman 3)
Shea Alterio writes:
Is this snippet in the mail *as delivered*?
If not, I suspect you have (or the defaults have) the "convert HTML to text" option set.
HTML mail is very fragile because many generators do not conform to the standard and it's very difficult to preserve the intended meaning even though if left alone it almost always displays nicely. In a context where intermediaries mutate it *in any way* before passing it on to the end user, it *will* break, and should be avoided. If HTML is very desirable for whatever reason, try turning off all mailing list features that touch the body (specifically header and footer).
participants (2)
-
Shea Alterio -
Stephen J. Turnbull